apache-ariatosca-0.1.1/examples/tosca-simple-1.0/use-cases/webserver-dbms-2/webserver-dbms-2.yaml

tosca_definitions_version: tosca_simple_yaml_1_0

description: >-
  TOSCA simple profile with a nodejs web server hosting a PayPal sample application which connects
  to a mongodb database.

metadata:
  template_name: webserver-dbms-2
  template_author: TOSCA Simple Profile in YAML
  template_version: '1.0'

imports:
  - custom_types/paypalpizzastore_nodejs_app.yaml

dsl_definitions:

  ubuntu_node: &ubuntu_node
    disk_size: 10 GB
    num_cpus: { get_input: my_cpus }
    mem_size: 4096 MB
  os_capabilities: &os_capabilities
    architecture: x86_64
    type: Linux
    distribution: Ubuntu
    version: 14.04

topology_template:

  inputs:
    my_cpus:
      type: integer
      description: Number of CPUs for the server.
      constraints:
        - valid_values: [ 1, 2, 4, 8 ]
      default: 1
    github_url:
      type: string
      description: The URL to download nodejs.
      default:  https://github.com/sample.git

  node_templates:

    paypal_pizzastore:
      type: tosca.nodes.WebApplication.PayPalPizzaStore
      properties:
          github_url: { get_input: github_url }
      requirements:
        - host: nodejs
        - database_connection: mongo_db
      interfaces:
        Standard:
           configure:
             implementation: scripts/nodejs/configure.sh
             inputs:
               github_url: { get_property: [ SELF, github_url ] }
               mongodb_ip: { get_attribute: [ mongo_server, private_address ] }
           start: scripts/nodejs/start.sh

    nodejs:
      type: tosca.nodes.WebServer.Nodejs
      requirements:
        - host: app_server
      interfaces:
        Standard:
          create: scripts/nodejs/create.sh

    mongo_db:
      type: tosca.nodes.Database
      properties:
        name: 'pizzastore' # ARIA NOTE: missing in spec
      requirements:
        - host: mongo_dbms
      interfaces:
        Standard:
         create: create_database.sh

    mongo_dbms:
      type: tosca.nodes.DBMS
      requirements:
        - host: mongo_server
      properties:
        port: 27017
      interfaces:
        Standard: # ARIA NOTE: mistaken in spec
          create: mongodb/create.sh
          configure:
            implementation: mongodb/config.sh
            inputs:
              mongodb_ip: { get_attribute: [ mongo_server, private_address ] }
          start: mongodb/start.sh

    mongo_server:
      type: tosca.nodes.Compute
      capabilities:
        os:
          properties: *os_capabilities
        host:
          properties: *ubuntu_node

    app_server:
      type: tosca.nodes.Compute
      capabilities:
        os:
          properties: *os_capabilities
        host:
          properties: *ubuntu_node

  outputs:

    nodejs_url:
      description: URL for the nodejs server, http://<IP>:3000
      value: { get_attribute: [ app_server, private_address ] }
    mongodb_url:
      description: URL for the mongodb server.
      value: { get_attribute: [ mongo_server, private_address ] }